It is known that the mean escape time of passive Brownian particles from a cavity with well-separated exit pores is inversely proportional to the number of pores [1]}, [2]}. However, our simulation results show that for active particles, \(\tau _{ex} \sim 1/n^{\alpha }\) . The exponent \(\alpha \)  varies in the range from 1 to 2 depending upon the persistence length of self-propulsion. For \(l_{\theta } \gg R\) , \(\alpha \)  assumes its maximum value 2. In the opposite limit \(l_{\theta } \ll R\) , \(\alpha = 1\) .
